India, one of the oldest civilizations around the world, is the country with a long history of almost 5000 years and extremely complex social structure. The country contains at least 15 major languages, hundreds of dialects, several major religions, and thousands of tribes, castes, and subcastes. With a large proportion of the population being located in rural areas, farming is the largest source of employment; for hundreds of millions of people, this means subsistence farming on tiny plots of land, whether owned or rented. In most parts of the country, some farmers produce cash crops for sale in urban markets, and in some areas, plantation crops such as tea, coffee, cardamom, and rubber are of great economic importance because they bring in foreign money.